EP 0520611 B1 19960410 - Double acting secondary sheave servo for a continuously variable transmission
Title (en)
Double acting secondary sheave servo for a continuously variable transmission
Title (de)
Zweite Riemenscheibe mit doppelter Hilfskraftverstärkung für ein stufenlos verstellbares Getriebe
Title (fr)
Deuxième poulie servo à double effet pour une transmission à variation continue
Publication
Application
Priority
US 72128591 A 19910626
Abstract (en)
[origin: EP0520611A1] A continuously variable transmission includes an improved secondary servo arrangement in order to provide the necessary clamping forces for high torque conditions. The secondary servo includes a plurality of fluid chambers (140,206,208) in order to allow an increase in the area for application of fluid pressure. Fluid conduits (210) between the chambers permit communication of the fluid to the chambers to regulate the clamping force of the movable sheaves of the secondary variable pulleys. <IMAGE>
IPC 1-7
IPC 8 full level
F16H 9/18 (2006.01); F16H 55/56 (2006.01); F16H 61/662 (2006.01); F16H 63/06 (2006.01)
CPC (source: EP US)
F16H 55/56 (2013.01 - EP US); F16H 61/66272 (2013.01 - EP US); F16H 63/065 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0520611 A1 19921230; EP 0520611 B1 19960410; CA 2063859 A1 19921227; DE 69209730 D1 19960515; DE 69209730 T2 19960829; JP 3402627 B2 20030506; JP H05187494 A 19930727; US 5244437 A 19930914
DOCDB simple family (application)
EP 92304087 A 19920506; CA 2063859 A 19920324; DE 69209730 T 19920506; JP 16774392 A 19920625; US 72128591 A 19910626